Introduction - If you have any usage issues, please Google them yourself
1. Write a simple program, the output "Welcome you", and add a line to the program notes "First C++ program".
2. To prepare a complete input and output that contains a simple C++ program.
3. Preparation of built-in functions for solving 2X2+4 X+5 value, X is an integer, and use the main function calls the function.
4. The use of function overloading, function overloading above, X as a floating-point number.
5. Write a program, for an array of integers the sum, sum sum the results of the use of global variables to store, while the odd integers in the sum, the results of the use of local variable sum is stored in the main program will be two results output.
6. Write a program that dynamically allocates space for a floating-point, enter a number into the space, calculated on the number of area and radius of the dots displayed on the screen, the final release of the space, please use the new, delete operator.